plus, add, sum

square root

minus, subtract, difference

cube root

times, multiply, product

ABC angle ABC

divided by, quotient

ABC triangle ABC

is equal to

a right angle

is not equal to

is perpendicular to

is less than

is parallel to

is less than or equal to

that is

is not less than

for example

is greater than

ratio symbol (read as 'to')

is greater than or equal to

parentheses

is not greater than

brackets

percent, out of 100

braces